Definition of helix

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Helix (n.) The incurved margin or rim of the external ear. See Illust. of Ear.

Lern More About Helix

Strombus :: Strombuliform (a.) Coiled into the shape of a screw or a helix.
Helix :: Helix (n.) A genus of land snails, including a large number of species..
Snail :: Snail (n.) Any one of numerous species of terrestrial air-breathing gastropods belonging to the genus Helix and many allied genera of the family Helicidae. They are abundant in nearly all parts of the world except the arctic regions, and feed almost entirely on vegetation; a land snail..
Helical :: Helical (a.) Of or pertaining to, or in the form of, a helix; spiral; as, a helical staircase; a helical spring..
Twist :: Twist (v. i.) To follow a helical or spiral course; to be in the form of a helix.
Volute :: Volute (n.) A spiral scroll which forms the chief feature of the Ionic capital, and which, on a much smaller scale, is a feature in the Corinthian and Composite capitals. See Illust. of Capital, also Helix, and Stale..
Anthelix :: Anthelix (n.) Same as Antihelix.
Spiral :: Spiral (a.) A plane curve, not reentrant, described by a point, called the generatrix, moving along a straight line according to a mathematical law, while the line is revolving about a fixed point called the pole. Cf. Helix..
Antihelix :: Antihelix (n.) The curved elevation of the cartilage of the ear, within or in front of the helix. See Ear..
Ivy :: Ivy (n.) A plant of the genus Hedera (H. helix), common in Europe. Its leaves are evergreen, dark, smooth, shining, and mostly five-pointed; the flowers yellowish and small; the berries black or yellow. The stem clings to walls and trees by rootlike fibers..
Pulmonata :: Pulmonata (n. pl.) An extensive division, or sub-class, of hermaphrodite gastropods, in which the mantle cavity is modified into an air-breathing organ, as in Helix, or land snails, Limax, or garden slugs, and many pond snails, as Limnaea and Planorbis..
Helix :: Helix (n.) A nonplane curve whose tangents are all equally inclined to a given plane. The common helix is the curve formed by the thread of the ordinary screw. It is distinguished from the spiral, all the convolutions of which are in the plane..
Helix :: Helix (n.) The incurved margin or rim of the external ear. See Illust. of Ear.
Helix :: Helix (n.) A caulicule or little volute under the abacus of the Corinthian capital.
Heliciform :: Heliciform (a.) Having the form of a helix; spiral.
Helicin :: Helicin (n.) A glucoside obtained as a white crystalline substance by partial oxidation of salicin, from a willow (Salix Helix of Linnaeus.).
Helixes :: Helixes (pl. ) of Heli.
Spirillum :: Spirifer (n.) Any one of numerous species of fossil brachipods of the genus Spirifer, or Delthyris, and allied genera, in which the long calcareous supports of the arms form a large spiral, or helix, on each side..
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